/Engine/Source/Runtime/Engine/Public/MaterialShaderType.h
Sets up the environment used to compile an instance of this shader type.
void SetupCompileEnvironment ( EShaderPlatform Platform, const [FMaterialShaderParameters](API\Runtime\Engine\FMaterialShaderParameters) & MaterialParameters, int32 PermutationId, EShaderPermutationFlags Flags, [FShaderCompilerEnvironment](API\Runtime\RenderCore\FShaderCompilerEnvironment) & Environment ) const